EOS 80D auto focus keeps moving in and out

[Steve77]

I have a Canon D80 and the auto focus keeps moving in and out of focus when trying to shoot. I have changed glass and used Canon and Tamron glass but it continues to be a problem. Is there a quick fix or do I send it in for repair. 

[jrhoffman75]

Welcome to the forum Steve77.

Are you in One Shot AF or AI Servo AF?

Switch camera to Green Square and see if it works OK?

[Steve77]

Thanks for reply. It happens on every mode I use.

[jrhoffman75]

Green Square overides pretty much all settings, but just to be sure, go into the menu and clear all camera settings and custom functions.

If the problem occurs in good lighting, like outside midday, my suggestion would be to call Canon at 1-800-OK-CANON.